Here's a list of businesses (and their ratings) in the Manufacturers/packers category.
In England, Wales and Northern Ireland food hygiene ratings are provided by the The Food Hygiene Rating Scheme (FHRS). Ratings in Scotland are provided by a similar scheme called the Food Hygiene Information Scheme (FHIS).
You can read more about FHRS and FHIS food ratings here.
Click on a establishment below for more information:

Total Score: 10 (lower is better)
Churchside Arcade Unit 7, Little Church Street, Rugby, CV21 3AW

Total Score: 15 (lower is better)
Home Farm Pailton Road, Harborough Magna, Rugby Warwickshire, CV23 0HG

Total Score: 5 (lower is better)
Unit 5 Laughing Dog Trading Estate London Road, Thurlaston, Warwickshire, CV23 9LP

Total Score: (lower is better)
5 Luke Jeayes Close, Cawston, Rugby, CV22 7YF

Total Score: (lower is better)